import pandas as pd
import matplotlib.pyplot as plt
import numpy as np
df = pd.read_excel('某公司各部门1—2月份实际支出.xlsx')
plt.figure(figsize=(8,4))
plt.rcParams['font.sans-serif'] = 'SimHei'
plt.title('某公司各部门1月份实际支出簇状柱形图')
plt.ylabel('实际支出(元)')
x_data = np.arange(len(df['部门']))
height_data=[]
height_data.append(df['1月'])
height_data.append(df['2月'])
width = 0.4
for i in range (len(height_data)):
    x = x_data+i*width
    height = height_data[i]
    plt.bar(x,height,width)
    for a ,b in zip(x,height):
        plt.text(a,b,'%d'%b,ha='center')
plt.xticks(x_data + 0.2,df['部门'])
plt.legend(('1月','2月'))
plt.show()
